Disclaimer

Last updated: February 2026

General Information

The information provided on ThermostatFixer (thermostatfixer.com) is for general informational and educational purposes only. Our thermostat troubleshooting guides, wiring diagrams, repair instructions, and cost estimates are intended to help homeowners understand their thermostat systems but should not be relied upon as professional HVAC, electrical, or safety advice.

Not Professional Advice

ThermostatFixer is not a licensed HVAC contractor, electrician, or home inspector. The guides and instructions on this site are not a substitute for professional assessment and repair. They do not account for:

  • Your specific HVAC system configuration and age
  • Local electrical codes and permit requirements
  • Existing wiring conditions, damage, or non-standard installations
  • Manufacturer warranty terms that may be voided by DIY work
  • Individual safety considerations and skill level

Electrical Safety Warning

Working with thermostat wiring involves low-voltage (24V) electrical circuits. While low-voltage thermostat wiring is generally safe for homeowners, improper connections can damage your thermostat, blow the transformer fuse on your furnace control board, or in rare cases cause equipment damage. Always turn off power at the circuit breaker before working on any thermostat wiring. If you encounter high-voltage wiring (120V or 240V), such as line-voltage thermostats for baseboard heaters, stop immediately and contact a licensed electrician.

When to Call a Professional

We recommend contacting a licensed HVAC technician if:

  • You smell gas or suspect a gas leak
  • Your system involves high-voltage (240V) wiring
  • You are unsure about any wiring connections
  • Your HVAC system is under warranty
  • The problem persists after following our troubleshooting steps
  • You have a complex multi-zone or commercial HVAC system

Accuracy

While we strive to provide accurate and up-to-date information, thermostat models, firmware, wiring standards, and HVAC technology change over time. We make no guarantees about the completeness, accuracy, or timeliness of any information on this site. Always refer to your specific thermostat's installation manual for the most current instructions.

Product Recommendations & Affiliate Disclosure

ThermostatFixer may contain affiliate links to products on Amazon and other retailers. If you click on an affiliate link and make a purchase, we may receive a small commission at no additional cost to you. This does not influence our recommendations — we recommend products based on quality, user reviews, and compatibility with common HVAC systems. Prices and availability shown are approximate and may change. Always verify current pricing on the retailer's website.

Limitation of Liability

In no event shall ThermostatFixer, its owners, authors, or contributors be liable for any direct, indirect, incidental, consequential, or special damages arising from the use of this website, reliance on any information provided herein, or any actions taken based on our guides. You assume full responsibility for any thermostat, wiring, or HVAC work you perform.

Contact

If you have questions about this disclaimer, please contact us at hello@thermostatfixer.com.